Straightaway valve



`LNo Model.) 2 Sheets-Sheep 1 S; B.. DOVER.

STRAIGHT WAY VALVE. A

120.284,122. Patented Aug.28, 1823;

N. PETERS, Phulvumognpmf. wnnington. n. C,

(No Model.)

i 2 sheets-sheet 2. S. B. DOVER.

STRAIGHT WAY VALVE.

No. 284,122. Patented Aug. 28, 1883.

UNITED STATES PATENT OFFICE.

` SAMUEL B. DOVER, OF DAYTON, OHIO.;

STRAIGHT-WAY VALVE.

SPECIFICATION `forming part of Letters Patent No. 284,122, dated August28, 1883.`

\ Application filed Februar-` 13, 1883. (No model.)

To all whom it may concern.:

Be it known thatLSAMUEL B. DOVER, a citizen of the'U-nited States, Aanda resident of Dayton,`in the county of Montgomery'and which allow thevalve-disks to rotate on theirV y quire fitting.

State of Ohio, have invented certain new and useful Improvements inStraight-Wray Valves, 1 of which the following is a specification.

My invention relates to straightway valves.`

The object'of my invention is to provide a double wedging-valve, thedisks of which will automatically seat against the faces `of thewater-way by working on universal joints,

Other features of my invention willdbe fully set forth in thedescription` of the accompanying drawings. j

Figure lis a central vertical section of my improvedV valve. Fig. 2 is aface elevation of valve-disk boxing. Fig. 3 is a side elevation ofthepart shown in Fig. 2. Fig. 4 is a central cross-section of the preferredform of valvedisks. 5 is a sectional plan on line x x, Fig. 1. Figs. 6and-7 are inner face views of `the valve shown in section in Fig. 4.Fig. 8 `is a modified form of operating the valve-disk boxing and disks.Figs.-9 and l0 show modifications of my valve disks and seats. Figs. 11and 12 are other modifications of the same parts.

A A reprcsentthe barrel of an ordinary straight-way valve; B B, thevalve-chamber,"

the inner faces of which form annular seats for plain valve-disks. C, D,andE represent the ordinary valve-stem, housing, cap, and stuffing-box.These parts are all of the usual form of construction.

F represents my improved valve-stem. V G is a cylindrical valve-diskshell suitably connected to stem F, as shown in Figs. 2 and 3.

` The inner periphery of shell G forms the cylindrical' support, andserves as seatsor bearings for the partial rotarymovement for valvedisks.c and b, which rest loosely therein.

o represents a semicircular flange made nea;1 the center of the innerperiphery of shell G, which serves to strengthen the shell, and holdsthe disks a b in an inclined position.

The preferred form of constructing the vajlvedisks and valve-seats, asshown in Figs. 2, 3, 4, 5, 6, and 7, is to provide a ball upon the innerface of one valve, seatingin a corresponding-shapedsocket in theopposite valve-disk, which serves as a center for the valve-disks torotate each upon the other, and also to serve as auniversal joint forthe valve-disks to adj ust themselves laterally upon each other, so thateach valve-disk Will be retained in a plane parallel with andsubsequently against theinclined seat, against which it is thrust by theshell G to hold the valve-disks closed and to form tight joints. Thering or shell G holds the valvedisks c b in correct planes, and the cen`7o teringof one upon the other allows a rotary motion of the disks,which causes the faces to wear evenly, and the rockingmotion allows themto" adjust the planes parallel to their seats. This form of constructionis very important, as the only finish required is to face off the valveand the seats.

Figs. `1, 2, and 3 show the valve-stem as op erated by screw-threads. Itmay be operated by a lever, as shown in Fig. 8. Instead of hav- 8O ing aball-and-socket joint on the inner face of y the disksc b, as shown inFigs. 1, 4, 5, and 6, the ring or shell G could be provided with adiaphragm, d, and each valve provided with a ball seating in a socket,e, as shown in Figs. 10 and 11, which would serve as a universal centerand perform the same functions asv the preferred form of construction.So, also, the ball for the centers might be .made on the lpartition h,and the sockets made in the face of the valves in which the balll wouldcenter, as shown in Fig. 12. 1 y

Fig. 11 shows a slightly-modiiied form of Figs. 9 and 10. Othermodifications might be made and still attain the principal effects of 95my invention.

Shell G is made a complete cylinder for j strength. A segment greaterthan a halfcircle would perform the samefunctions of holding the disks,but would not be as'strong and roc* durable.V

I claimwith the stein F and cylindrical shell G, of the valves a b,loosely supported by the inner pei 5 riphery of shell G, and providedwith ball-andsooket Centers on which the valves can rotate and adjust theinselves to the vseats in the valveohaniber B B, substantially asherein set forth.

In testimony whereof I have hereunto set 2o v my hand in the presence oftWo subscribing Witnesses. Y

SAML. B. DOVER. Witnesses:

JN0. E. JONES, A. GLUorroWsKY.

